<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Chicago air pollution and death rate data</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="R.css" />
</head><body>

<table width="100%" summary="page for chicago"><tr><td>chicago</td><td style="text-align: right;">R Documentation</td></tr></table>

<h2>Chicago air pollution and death rate data</h2>

<h3>Description</h3>

<p> Daily air pollution and death rate data for Chicago.</p>


<h3>Usage</h3>

<pre>
data(chicago)
</pre>


<h3>Format</h3>

<p>A data frame with 7 columns and 5114 rows. Each row refers to one day.
The columns are:
</p>

<dl>
<dt>death</dt><dd><p> total deaths (per day).</p>
</dd>
<dt>pm10median</dt><dd><p>median particles in 2.5-10 per cubic m</p>
</dd>
<dt>pm25median</dt><dd><p>median particles &lt; 2.5 mg per cubic m (more dangerous).</p>
</dd>
<dt>o3median</dt><dd><p>Ozone in parts per billion</p>
</dd>
<dt>so2median</dt><dd><p>Median Sulpher dioxide measurement</p>
</dd>
<dt>time</dt><dd><p>time in days</p>
</dd>
<dt>tmpd</dt><dd><p>temperature in fahrenheit</p>
</dd>
</dl>


<h3>Details</h3>

<p> See the <code>NMMAPSdata</code> package for fuller details. Note that
there are missing values in some fields.
</p>


<h3>Source</h3>

 
<p>Roger D. Peng, Leah J. Welty and Aiden McDermott. R package NMMAPSdata.
</p>


<h3>References</h3>

<p>Peng, R.D. and Welty, L.J. (2004) The NMMAPSdata package. R News 4(2).
</p>
<p>Wood, S.N. (2006, 2017) Generalized Additive Models: An Introduction with R
</p>


</body></html>
